HFD63B100 - 100Amp Circuit Breaker

HFD63B100 - 100Amp Circuit Breaker

When your existing installation calls for the Siemens HFD63B100, the details matter. This 100-amp, 3-pole molded case circuit breaker uses an FD frame and a thermal-magnetic trip unit for overload and short-circuit protection. It carries a 600VAC maximum voltage rating, with an interrupting capacity of 25 kAIC at 600V and 65 kAIC at 480V.

Key Features and Benefits

• 100A, 3-pole design matches equipment requiring this specific electrical configuration.
• Rated for applications up to 600VAC.
• Uses a thermal-magnetic trip mechanism for overload and short-circuit protection.
• Built on the FD frame for compatible equipment and replacement applications.
• Includes TA1FD350A load-side lugs.
• Handles a broad conductor range: 6 AWG–350 kcmil copper and 4 AWG–350 kcmil aluminum.
• Standard 40°C breaker configuration.
• Meets UL 489 and IEC 60947-2 requirements.

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HFD63B100
  
• Product Line: SENTRON
  
• Type: Molded Case Circuit Breaker
  
• Frame: FD
  
• Amperage: 100A
  
• Poles: 3
  
• Maximum Voltage: 600VAC
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Capacity at 600V: 25 kAIC
  
• Interrupting Capacity at 480V: 65 kAIC
  
• Standard Temperature: 40°C
  
• Lugs: TA1FD350A
  
• Lug Position: Load side
  
• Copper Wire Range: 6 AWG–350 kcmil
  
• Aluminum Wire Range: 4 AWG–350 kcmil
  
• Dimensions (W x H x D): 4.5 x 9.5 x 4 in.
  
• UPC: 783643211797
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The HFD63B100 circuit breaker meets UL 489 and IEC 60947-2 standards. These are important specifications to verify when the breaker is being matched to an existing installation or equipment requirement.

Where It Works Best

The Siemens HFD63B100 is at home in commercial and industrial electrical distribution equipment designed for a 100A, three-pole FD-frame molded case circuit breaker. It’s especially relevant when maintaining existing or legacy equipment and the goal is to replace a breaker without changing the intended electrical configuration.